/Engine/Plugins/Online/OnlineFramework/Source/Party/Public/User/SocialUser.h
bool SetUserLocalAttribute ( [ESocialSubsystem](API\Plugins\Party\ESocialSubsystem) SubsystemType, const [FString](API\Runtime\Core\Containers\FString) & AttrName, const [FString](API\Runtime\Core\Containers\FString) & AttrValue )